/** 判断编码是否存在 */ @RequestMapping(value = "/has") public void has(PrintWriter out) { PageData pd = new PageData(); try { pd = this.getPageData(); if (dictionariesService.findBmCount(pd) != null) { out.write("error"); } else { out.write("success"); } out.close(); } catch (Exception e) { logger.error(e.toString(), e); } }